Unit 4 This is my friend 单元语法专项-2026-2027学年上学期英语三年级上册（译林版三起·新教材）

**基本信息** 聚焦单元核心语法，通过系统知识点总结与梯度化题型训练，强化This is...句型、人称代词及字母发音的理解与应用，突出高频易错点警示，提升语言运用能力。 **专项设计** |模块|题量/典例|方法提炼|知识逻辑| |----|-----------|----------|----------| |核心语法总结|含4类句式结构表、3项发音规则、7个固定搭配及4条易错警示|句式结构公式化（This is+人名等）、易错点对比纠错（如This's错误形式）|从句型介绍到代词应用再到发音规则，层层递进| |专项练习题|8类题型（缩写转换、选词填空等），含2篇短文填空及情景交际|基础夯实→单句运用→综合输出的梯度训练，结合教材原句迁移应用|从语法点识别到句子改写再到语篇运用，难度递增|

Unit 4 This is my friend 单元语法专项-2026-2027学年上学期英语三年级上册（译林版三起·新教材） 第一部分 单元核心语法知识点总结 一、This is... 介绍句型与人称代词（单元核心语法） 本单元核心语法为用 This is... 句型向第三方介绍近处的人物，以及用人称代词 he/she 搭配 be 动词说明人物身份，其中 he's = he is，she's = she is。 句式 结构公式 教材原句示例 介绍他人 This is + 人名 / 人物 This is Sam. He's my friend. 说明男性身份 He's + 身份 / 名字 He's my friend. 说明女性身份 She's + 身份 / 名字 She's my friend. 交际应答 Nice to meet you. / Nice to meet you too. Nice to meet you, Sam. 二、字母Ll, Mm, Nn的发音规则（Letters in focus） 本单元重点学习三个辅音字母的发音，是听力与辨音题高频考点： 1. 字母Ll 发 /l/ 音：例词：look, hello, lion, ruler 2. 字母Mm 发 /m/ 音：例词：my, mum, name, Sam 3. 字母Nn 发 /n/ 音：例词：name, new, nine, Nancy 三、单元核心固定搭配（语法常考搭配） - this is 这是 - my friend 我的朋友 - Nice to meet you. 很高兴认识你。 - Nice to meet you too. 我也很高兴认识你。 - he's = he is 他是 - she's = she is 她是 - Goodbye. 再见 ⚠️高频易错警示 1. This is 没有缩写形式，不可以写成 This's。 错误：This's my friend. 正确：This is my friend. 2. 男性用人称代词 he，女性用人称代词 she，注意性别对应。 错误：She's my brother. 正确：He's my brother. 3. 第一次向别人介绍某人时，要用 This is...，不能直接用 He/She is...。 错误：He is Sam. He's my friend. 正确：This is Sam. He's my friend. 4. Nice to meet you. 的答语是 Nice to meet you too.，句尾的 too不能遗漏。 第二部分 语法专项练习题 练习一 写出下列缩写的完整形式或完整形式的缩写（基础夯实） A 写出下列缩写的完整形式 1. he's ________ 2. she's ________ 3. it's ________ 4. what's ________ 5. I'm ________ 6. you're ________ B 写出下列完整形式的缩写 1. he is ________ 2. she is ________ 3. it is ________ 4. what is ________ 5. I am ________ 6. you are ________ 练习二 选词填空（单句语法运用） 从方框中选择合适的词填空，每词限用一次 ( he she this is am are my your ) 1. ________ is my friend, Sam. 2. ________ is my sister, Yang Ling. 3. This ________ Liu Tao. 4. I ________ in Class 1. 5. You ________ my good friend. 6. This is ________ friend, Zhang Hua. 7. What's ________ name? 8. ________ is Mike. He's my friend. 9. ________ is Su Hai. She's my friend. 10. This ________ my family. 练习三 句子改错（找出下列各句中的一处错误并改正） 1. This's my friend, Bobby. ________ 改为 ________ 2. She is my brother, Wang Bing. ________ 改为 ________ 3. This are my friend, Tina. ________ 改为 ________ 4. He's me friend. ________ 改为 ________ 5. Nice to meet you, to. ________ 改为 ________ 6. She name is Yang Ling. ________ 改为 ________ 7. This is I friend. ________ 改为 ________ 8. He are my brother. ________ 改为 ________ 9. This are Sam. ________ 改为 ________ 10. She's my friend, Mike. ________ 改为 ________ 练习四 按要求改写句子（句型转换核心训练） 1. This is my friend.（改为一般疑问句，并作肯定回答） ________________________________________________________________ 2. He is Liu Tao.（改为缩写形式） ________________________________________________________________ 3. She is my sister.（改为一般疑问句，并作否定回答） ________________________________________________________________ 4. This is Sam.（对划线部分提问） ________________________________________________________________ 5. He's my friend.（对划线部分提问） ________________________________________________________________ 6. Nice to meet you.（写出答语） ________________________________________________________________ 7. This is Yang Ling.（用she改写句子，保持句意不变） ________________________________________________________________ 8. He is Mike.（用this改写句子，保持句意不变） ________________________________________________________________ 9. This is my brother.（改为否定句） ________________________________________________________________ 10. She's my good friend.（对划线部分提问） ________________________________________________________________ 11. I'm Su Hai.（改为一般疑问句，并作否定回答） ________________________________________________________________ 12. You are my friend.（改为缩写形式） ________________________________________________________________ 13. This is a cat.（对划线部分提问） ________________________________________________________________ 14. He is my grandpa.（改为一般疑问句） ________________________________________________________________ 15. She is my mother.（用she's改写） ________________________________________________________________ 练习五 单项选择（语法辨析·易错点强化） ( ) 1. —Hi, Bobby. This is my friend, Sam. —________ A. Goodbye. B. Nice to meet you. C. Thank you. ( ) 2. This ________ my friend, Yang Ling. A. am B. is C. are ( ) 3. ________ is my brother. A. He B. She C. This's ( ) 4. —Who's she? —________ my mother. A. He's B. She's C. This's ( ) 5. 向别人介绍你的朋友刘涛时，你应该说： A. He's Liu Tao. B. This is Liu Tao. C. She's Liu Tao. ( ) 6. Which word has the sound /l/? A. my B. look C. name ( ) 7. —Nice to meet you. —________ A. Good morning. B. Nice to meet you too. C. Hello. ( ) 8. This is Tina. ________ my friend. A. He's B. She's C. It's ( ) 9. ________ is my friend, Zhang Hua. A. This B. He's C. She's ( ) 10. Which word has the sound /m/? A. mum B. no C. lion ( ) 11. —Is he your friend? —Yes, ________. A. he is B. she is C. it is ( ) 12. This is ________ friend. A. I B. my C. me ( ) 13. Which of the following sentences is CORRECT? A. This's my sister. B. He's my friend. C. She is my brother. ( ) 14. —Goodbye, Sam. —________ A. Goodbye, Bobby. B. Hello, Bobby. C. Nice to meet you. ( ) 15. ________ is this? A. Who B. What C. Where ( ) 16. Which word has the different sound of the first letter? A. look B. name C. lion ( ) 17. This is my uncle. ________ very cool. A. He's B. She's C. It's ( ) 18. —________ —She's my friend. A. Who's she? B. What's she? C. Is she your friend? ( ) 19. —Is this your sister? —No, ________. A. he isn't B. she isn't C. it isn't ( ) 20. We have many ________ in our class. A. friend B. friends C. a friend 练习六 根据汉语提示完成句子（汉译英语法输出） 1. 这是我的朋友萨姆。 ________ Sam. He's ________. 2. 她是我的姐姐杨玲。 ________ my sister Yang Ling. 3. 很高兴认识你。 ________ you. 4. 他是谁？他是我的弟弟。 —________ he? —________ my brother. 5. 这是张华。他是我的朋友。 ________ Zhang Hua. ________ my friend. 6. 再见，博比。再见，萨姆。 ________, Bobby. ________, Sam. 7. 这是你的朋友吗？ ________ your friend? 8. 我也很高兴认识你。 Nice to meet you ________. 9. 他是你的爸爸吗？ ________ your father? 10. 这位是我的妈妈。 ________ my mother. 练习七 短文填空（语法运用·选词填空·共2篇） Passage 1（基础篇·贴合教材Cartoon time） 从方框中选择合适的词填空，每词限用一次。 ( friend This He's She's meet Goodbye Hi my ) 1.________, Tina! Hi, Bobby! 2.________ is Sam. 3.________ my 4.________. Hi, Sam. Nice to 5.________ you. Nice to meet you too. 6.________, Tina! Goodbye, Sam! Passage 2（提升篇·贴合教材Story time） 从方框中选择合适的词填空，每词限用一次。 ( This He's She's my friend too meet class ) Hello, I'm Wang Bing. This is Liu Tao. 1.________ my good 2.________. We are in 3.________ 1. 4.________ is Zhang Hua. 5.________ my friend 6.________. Hi, Zhang Hua. Nice to 7.________ you. Nice to meet you 8.________. 练习八 情景交际补全对话（语法+交际综合运用） 从方框中选择合适的句子补全对话，有两项多余。 ( A. This is my friend, Yang Ling. B. Nice to meet you, Yang Ling. C. Goodbye, Mike. D. Hello, Mike. E. She's my sister. F. How are you? G. Nice to meet you too. ) A: Hello, Su Hai. B: 1.________ A: 2.________ B: Hello, Yang Ling. 3.________ C: 4.________ A: It's time for class. Let's go. B & C: OK. A: 5.________ B: Goodbye. 参考答案 练习一 写出下列缩写的完整形式或完整形式的缩写 A 写出下列缩写的完整形式 1. he is 2. she is 3. it is 4. what is 5. I am 6. you are B 写出下列完整形式的缩写 1. he's 2. she's 3. it's 4. what's 5. I'm 6. you're 练习二 选词填空 1. This 2. She 3. is 4. am 5. are 6. my 7. your 8. He 9. She 10. is 练习三 句子改错 1. This's → This is 2. She → He 3. are → is 4. me → my 5. to → too 6. She → Her 7. I → my 8. are → is 9. are → is 10. She's → He's 练习四 按要求改写句子 1. Is this your friend? Yes, it is. 2. He's Liu Tao. 3. Is she your sister? No, she isn't. 4. Who is this? 5. Who is he? 6. Nice to meet you too. 7. She is Yang Ling. 8. This is Mike. 9. This isn't my brother. 10. Who is she? 11. Are you Su Hai? No, I'm not. 12. You're my friend. 13. What is this? 14. Is he your grandpa? 15. She's my mother. 练习五 单项选择 1.B 2.B 3.A 4.B 5.B 6.B 7.B 8.B 9.A 10.A 11.A 12.B 13.B 14.A 15.A 16.B 17.A 18.A 19.B 20.B 练习六 根据汉语提示完成句子 1. This is; my friend 2. She's 3. Nice to meet 4. Who's; He's 5. This is; He's 6. Goodbye; Goodbye 7. Is this 8. too 9. Is he 10. This is 练习七 短文填空 Passage 1 1. Hi 2. This 3. He's 4. friend 5. meet 6. Goodbye Passage 2 1. He's 2. friend 3. Class 4. This 5. He's 6. too 7. meet 8. too 练习八 情景交际补全对话 1.D 2.A 3.B 4.G 5.C ( 第 1 页 共 10 页 ) 学科网（北京）股份有限公司 $